RSSWebCacheItem.java |
1 /** 2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved. 3 * 4 * 5 * 6 * 7 * The contents of this file are subject to the terms of the Liferay Enterprise 8 * Subscription License ("License"). You may not use this file except in 9 * compliance with the License. You can obtain a copy of the License by 10 * contacting Liferay, Inc. See the License for the specific language governing 11 * permissions and limitations under the License, including but not limited to 12 * distribution rights of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 * SOFTWARE. 21 */ 22 23 package com.liferay.portlet.rss.util; 24 25 import com.liferay.portal.kernel.util.Time; 26 import com.liferay.portal.kernel.webcache.WebCacheException; 27 import com.liferay.portal.kernel.webcache.WebCacheItem; 28 29 import com.sun.syndication.feed.synd.SyndFeed; 30 import com.sun.syndication.io.SyndFeedInput; 31 import com.sun.syndication.io.XmlReader; 32 33 import java.net.URL; 34 35 /** 36 * <a href="RSSWebCacheItem.java.html"><b><i>View Source</i></b></a> 37 * 38 * @author Brian Wing Shun Chan 39 */ 40 public class RSSWebCacheItem implements WebCacheItem { 41 42 public RSSWebCacheItem(String url) { 43 _url = url; 44 } 45 46 public Object convert(String key) throws WebCacheException { 47 SyndFeed feed = null; 48 49 try { 50 51 // com.liferay.portal.kernel.util.HttpUtil will break the connection 52 // if it spends more than 5 seconds looking up a location. However, 53 // German umlauts do not get encoded correctly. This may be a bug 54 // with commons-httpclient or with how FeedParser uses 55 // java.io.Reader. 56 57 // Use http://xml.newsisfree.com/feeds/29/629.xml and 58 // http://test.domosoft.com/up/RSS to test if German umlauts show 59 // up correctly. 60 61 /*Reader reader = new StringReader( 62 new String(HttpUtil.URLtoByteArray(_url))); 63 64 channel = FeedParser.parse(builder, reader);*/ 65 66 SyndFeedInput input = new SyndFeedInput(); 67 68 feed = input.build(new XmlReader(new URL(_url))); 69 } 70 catch (Exception e) { 71 throw new WebCacheException(_url + " " + e.toString()); 72 } 73 74 return feed; 75 } 76 77 public long getRefreshTime() { 78 return _REFRESH_TIME; 79 } 80 81 private static final long _REFRESH_TIME = Time.MINUTE * 20; 82 83 private String _url; 84 85 }